<Swing Dev> RFR: 7190978: javax/swing/JComponent/7154030/bug7154030.java fails on mac

[Prasanta Sadhukhan]

Please review a test fix for an issue seen where robot image capture is wrong if screen scale factor is more, which could result in button or frame to move out of captured dimension of 300,300.
Fixed by setting uiScale=1 in the test which can still reproduce JDK-7154030.
Mach5 job has been run for several iterations in all platforms. Link in JBS.

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Commit messages:
 - 7190978: javax/swing/JComponent/7154030/bug7154030.java fails on mac
 - Initial fix

Changes: https://git.openjdk.java.net/jdk/pull/955/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=955&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-7190978
  Stats: 13 lines in 2 files changed: 10 ins; 1 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/955.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/955/head:pull/955

PR: https://git.openjdk.java.net/jdk/pull/955